JPH10502014A - サイクロン反応器 - Google Patents
サイクロン反応器Info
- Publication number
- JPH10502014A JPH10502014A JP8502777A JP50277796A JPH10502014A JP H10502014 A JPH10502014 A JP H10502014A JP 8502777 A JP8502777 A JP 8502777A JP 50277796 A JP50277796 A JP 50277796A JP H10502014 A JPH10502014 A JP H10502014A
- Authority
- JP
- Japan
- Prior art keywords
- reactor
- sparger
- reaction
- reactants
- reactant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/26—Nozzle-type reactors, i.e. the distribution of the initial reactants within the reactor is effected by their introduction or injection through nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
- B01F25/23—Mixing by intersecting jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J12/00—Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2405—Stationary reactors without moving elements inside provoking a turbulent flow of the reactants, such as in cyclones, or having a high Reynolds-number
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00162—Controlling or regulating processes controlling the pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00164—Controlling or regulating processes controlling the flow
- B01J2219/00166—Controlling or regulating processes controlling the flow controlling the residence time inside the reactor vessel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/264,825 US5518700A (en) | 1994-06-25 | 1994-06-25 | Cyclonic reactor |
US08/264,825 | 1994-06-25 | ||
PCT/EP1995/002400 WO1996000126A1 (en) | 1994-06-25 | 1995-06-20 | Cyclonic reactor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10502014A true JPH10502014A (ja) | 1998-02-24 |
Family
ID=23007770
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8502777A Ceased JPH10502014A (ja) | 1994-06-25 | 1995-06-20 | サイクロン反応器 |
Country Status (12)
Country | Link |
---|---|
US (1) | US5518700A (ko) |
EP (1) | EP0767704B1 (ko) |
JP (1) | JPH10502014A (ko) |
KR (1) | KR100383023B1 (ko) |
CN (1) | CN1086309C (ko) |
AU (1) | AU2886495A (ko) |
CA (1) | CA2193835C (ko) |
DE (1) | DE69502284T2 (ko) |
ES (1) | ES2115388T3 (ko) |
PL (1) | PL179364B1 (ko) |
TW (1) | TW284703B (ko) |
WO (1) | WO1996000126A1 (ko) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012520328A (ja) * | 2009-03-13 | 2012-09-06 | ユニバーシティ オブ ユタ リサーチ ファウンデーション | 流体スパージ型らせん状チャンネルリアクタおよび関連する方法 |
JP2017503234A (ja) * | 2013-11-15 | 2017-01-26 | バイエル・テクノロジー・サービシーズ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングBayer Technology Services GmbH | 少なくとも1つの化学反応を行うように設計された設備を動作させるための方法 |
JP2017512642A (ja) * | 2014-03-31 | 2017-05-25 | イネオス ユーロープ アクチェンゲゼルシャフト | アンモ酸化反応器のためのフィードスパージャ設計 |
JP2023086704A (ja) * | 2021-12-10 | 2023-06-22 | エコナ パワー インコーポレイテッド | 流体混合方法およびシステム |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6004517A (en) * | 1995-05-24 | 1999-12-21 | The Dow Chemical Company | Process to make allyl chloride and reactor useful in that process |
US5504266A (en) † | 1995-05-24 | 1996-04-02 | The Dow Chemical Company | Process to make allyl chloride and reactor useful in that process |
GB9624729D0 (en) * | 1996-11-28 | 1997-01-15 | Smeaton Ian | Fluid injection device |
US20050056313A1 (en) * | 2003-09-12 | 2005-03-17 | Hagen David L. | Method and apparatus for mixing fluids |
DE102004021612A1 (de) * | 2004-03-15 | 2005-10-06 | Dietrich Engineering Consultants S.A. | Verfahren und Vorrichtung zum pneumatischen Behandeln pulverförmiger Stoffe |
US7568361B2 (en) * | 2004-09-02 | 2009-08-04 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7910769B2 (en) | 2004-09-02 | 2011-03-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7572936B2 (en) | 2004-09-02 | 2009-08-11 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7741515B2 (en) * | 2004-09-02 | 2010-06-22 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7381836B2 (en) * | 2004-09-02 | 2008-06-03 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US20060047153A1 (en) * | 2004-09-02 | 2006-03-02 | Wonders Alan G | Optimized liquid-phase oxidation |
US7692036B2 (en) | 2004-11-29 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7582793B2 (en) | 2004-09-02 | 2009-09-01 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7507857B2 (en) * | 2004-09-02 | 2009-03-24 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7399882B2 (en) * | 2004-09-02 | 2008-07-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7692037B2 (en) | 2004-09-02 | 2010-04-06 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7504535B2 (en) | 2004-09-02 | 2009-03-17 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7683210B2 (en) * | 2004-09-02 | 2010-03-23 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US7589231B2 (en) * | 2004-09-02 | 2009-09-15 | Eastman Chemical Company | Optimized liquid-phase oxidation |
JP2006297173A (ja) * | 2005-04-15 | 2006-11-02 | Hsp:Kk | 液体混合装置 |
US7884232B2 (en) | 2005-06-16 | 2011-02-08 | Eastman Chemical Company | Optimized liquid-phase oxidation |
US8240908B2 (en) * | 2005-09-01 | 2012-08-14 | The Procter & Gamble Company | Control system for and method of combining materials |
US20070248510A1 (en) * | 2006-04-25 | 2007-10-25 | Dean Anne M | Dual gas-liquid spargers for catalytic processing units |
US20070263483A1 (en) * | 2006-05-10 | 2007-11-15 | Kenrick Venett | Introduction of additives into bulk polymer |
US7726870B1 (en) * | 2007-04-19 | 2010-06-01 | Vortex Systems (International) Ci | Method for mixing fluids with an eductor |
CN101468300B (zh) * | 2007-12-28 | 2013-04-17 | 亚泰半导体设备股份有限公司 | 桶槽漩流混合装置及方法 |
JP5604038B2 (ja) | 2008-08-25 | 2014-10-08 | 株式会社日立製作所 | 反応装置及び反応プラント |
CN101839395B (zh) * | 2009-10-27 | 2012-10-24 | 梁法春 | 一种气液两相流均匀分配装置 |
CN102533311B (zh) * | 2010-12-30 | 2014-08-06 | 中国石油天然气集团公司 | 一种轴流式超短接触旋流反应器 |
US20130037492A1 (en) * | 2011-08-09 | 2013-02-14 | Severn Trent De Nora, Llc | System and Method for Optimizing the Mixing of Hypochlorite with Ballast Water |
CN103865570B (zh) * | 2012-12-11 | 2016-05-11 | 中国石油化工集团公司 | 一种烷基化反应器及方法 |
CN106157770B (zh) * | 2016-09-22 | 2022-03-04 | 陕西师范大学 | 甲烷和氯气取代反应装置及方法 |
CN106390708B (zh) * | 2016-11-24 | 2019-03-29 | 东南大学 | 一种焦炉烟气脱硝的花瓣形喷氨装置 |
CN108176264B (zh) * | 2018-01-04 | 2021-03-09 | 中国石油集团海洋工程有限公司 | 多相体系钻井液混合器 |
CN108816067B (zh) * | 2018-08-06 | 2024-05-10 | 北京京诚科林环保科技有限公司 | 一种高温烟气快混装置 |
CN110681275B (zh) * | 2019-10-15 | 2020-11-20 | 中国矿业大学 | 一种旋流搅拌混合装置及方法 |
CN113457572A (zh) * | 2020-03-30 | 2021-10-01 | 中石油吉林化工工程有限公司 | 一种丙酮氰醇低温反应器 |
CN111760482B (zh) * | 2020-07-14 | 2022-05-27 | 珠海格力智能装备有限公司 | 混合装置 |
CN114425286B (zh) * | 2020-10-29 | 2023-10-10 | 中国石油化工股份有限公司 | 一种烯烃水合反应系统和烯烃水合方法 |
CN115106023B (zh) * | 2021-03-17 | 2024-04-02 | 中国石油化工股份有限公司 | 气液两相反应器及其应用和烃油加氢方法 |
CN113041871A (zh) * | 2021-04-22 | 2021-06-29 | 昆明有色冶金设计研究院股份公司 | 一种免搅拌多相混合分配装置 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2751425A (en) * | 1951-02-01 | 1956-06-19 | Exxon Research Engineering Co | Method and apparatus for mixing and contacting fluids |
NL87115C (ko) * | 1953-10-29 | 1956-09-15 | ||
US2759800A (en) * | 1953-12-28 | 1956-08-21 | Phillips Petroleum Co | Liquid-liquid contacting device |
US3054831A (en) * | 1958-04-10 | 1962-09-18 | Union Carbide Corp | Halogenation of organic compounds over a narrow temperature range |
US3595297A (en) * | 1967-12-20 | 1971-07-27 | Knapsack Ag | Apparatus for thickening or concentrating highly fluid solutions |
FR1600520A (ko) * | 1968-12-05 | 1970-07-27 | ||
US3488159A (en) * | 1969-05-06 | 1970-01-06 | Atomic Energy Commission | Jet-pulsed liquid-liquid extraction column |
US3586732A (en) * | 1969-06-27 | 1971-06-22 | Trw Inc | Process for preparing olefins and the apparatus therefor |
BE755089A (fr) * | 1969-08-20 | 1971-02-22 | Montedison Spa | Reacteur et procede pour la fabrication de dioxyde de titane dequalite pigmentaire |
NL160292C (nl) * | 1969-09-19 | 1979-10-15 | Stamicarbon | Werkwijze en reactor voor het continu polymeriseren van etheen. |
US3914110A (en) * | 1974-02-19 | 1975-10-21 | Universal Oil Prod Co | Alkylation reaction cooler |
CA1213128A (en) * | 1982-10-07 | 1986-10-28 | Arie L. Mos | Reactor for exothermic or endothermic chemical processes |
FR2577658B1 (fr) * | 1985-02-14 | 1987-03-06 | Alsthom Atlantique | Dispositif d'homogeneisation d'un fluide transporte dans une canalisation |
NO166394C (no) * | 1985-10-17 | 1991-07-17 | Inst Francais Du Petrole | Fremgangsmaate for oksydering i gassfase, samt reaktor foranvendelse ved fremgangsmaaten. |
FR2592320B1 (fr) * | 1985-12-30 | 1988-04-08 | Inst Francais Du Petrole | Nouveau procede d'oxydation d'une charge oxydable en phase gazeuse et reacteur pour la mise en oeuvre de ce procede. |
DE3721472A1 (de) * | 1987-06-30 | 1989-02-02 | Huels Chemische Werke Ag | Verfahren zur herstellung von methallylchlorid |
US4891339A (en) * | 1987-10-23 | 1990-01-02 | Aerochem Research Laboratories, Inc. | Process and apparatus for the flame preparation of ceramic powders |
JPH0218303A (ja) * | 1988-07-07 | 1990-01-22 | Mitsubishi Gas Chem Co Inc | 炭化水素の改質反応器および改質方法 |
US4928481A (en) * | 1988-07-13 | 1990-05-29 | Prutech Ii | Staged low NOx premix gas turbine combustor |
JP2813100B2 (ja) * | 1992-10-23 | 1998-10-22 | 株式会社トクヤマ | アリルクロライドの製造方法および製造装置 |
-
1994
- 1994-06-25 US US08/264,825 patent/US5518700A/en not_active Expired - Fee Related
-
1995
- 1995-06-10 TW TW084105922A patent/TW284703B/zh active
- 1995-06-20 CA CA002193835A patent/CA2193835C/en not_active Expired - Fee Related
- 1995-06-20 AU AU28864/95A patent/AU2886495A/en not_active Abandoned
- 1995-06-20 PL PL95317935A patent/PL179364B1/pl not_active IP Right Cessation
- 1995-06-20 DE DE69502284T patent/DE69502284T2/de not_active Expired - Fee Related
- 1995-06-20 EP EP95924302A patent/EP0767704B1/en not_active Expired - Lifetime
- 1995-06-20 JP JP8502777A patent/JPH10502014A/ja not_active Ceased
- 1995-06-20 ES ES95924302T patent/ES2115388T3/es not_active Expired - Lifetime
- 1995-06-20 WO PCT/EP1995/002400 patent/WO1996000126A1/en active IP Right Grant
- 1995-06-20 CN CN95193771A patent/CN1086309C/zh not_active Expired - Fee Related
- 1995-06-20 KR KR1019960707407A patent/KR100383023B1/ko not_active IP Right Cessation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012520328A (ja) * | 2009-03-13 | 2012-09-06 | ユニバーシティ オブ ユタ リサーチ ファウンデーション | 流体スパージ型らせん状チャンネルリアクタおよび関連する方法 |
JP2017503234A (ja) * | 2013-11-15 | 2017-01-26 | バイエル・テクノロジー・サービシーズ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングBayer Technology Services GmbH | 少なくとも1つの化学反応を行うように設計された設備を動作させるための方法 |
US10261479B2 (en) | 2013-11-15 | 2019-04-16 | Bayer Aktiengesellschaft | Method for operating a facility designed for performing at least one chemical reaction |
JP2019145147A (ja) * | 2013-11-15 | 2019-08-29 | バイエル、アクチエンゲゼルシャフトBayer Aktiengesellschaft | 少なくとも1つの化学反応を行うように設計された設備を動作させるための方法 |
JP2017512642A (ja) * | 2014-03-31 | 2017-05-25 | イネオス ユーロープ アクチェンゲゼルシャフト | アンモ酸化反応器のためのフィードスパージャ設計 |
JP2023086704A (ja) * | 2021-12-10 | 2023-06-22 | エコナ パワー インコーポレイテッド | 流体混合方法およびシステム |
Also Published As
Publication number | Publication date |
---|---|
CN1086309C (zh) | 2002-06-19 |
CA2193835C (en) | 2004-11-23 |
PL179364B1 (pl) | 2000-08-31 |
CA2193835A1 (en) | 1996-01-04 |
AU2886495A (en) | 1996-01-19 |
ES2115388T3 (es) | 1998-06-16 |
EP0767704B1 (en) | 1998-04-29 |
CN1151126A (zh) | 1997-06-04 |
PL317935A1 (en) | 1997-04-28 |
WO1996000126A1 (en) | 1996-01-04 |
KR970703809A (ko) | 1997-08-09 |
EP0767704A1 (en) | 1997-04-16 |
US5518700A (en) | 1996-05-21 |
TW284703B (ko) | 1996-09-01 |
DE69502284T2 (de) | 1998-08-20 |
KR100383023B1 (ko) | 2003-07-22 |
DE69502284D1 (de) | 1998-06-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH10502014A (ja) | サイクロン反応器 | |
US6713036B1 (en) | Process for mixing and reacting two or more fluids | |
KR100415889B1 (ko) | 염화알릴의제조방법및이방법에유용한반응기 | |
CN1203917C (zh) | 热气体反应器及其应用方法 | |
JP2004501758A (ja) | 反応体流の混合処理における副生成物量の低減法 | |
JP4270867B2 (ja) | 反応器への開始剤給送装置 | |
TW200930451A (en) | Oxygen/hydrocarbon rapid (high shear) gas mixer | |
CN110156580A (zh) | 烯烃制醛的方法和设备 | |
JP2003502457A (ja) | 移動流媒体と反応性反応成分の徹底的混合によりエチレンの単独および共重合体を製造する方法 | |
CN113663607B (zh) | 下行床反应器及其操作方法 | |
CN114505022B (zh) | 用于丁二烯气相氯化制备二氯丁烯的撞击流反应器 | |
CN103666522A (zh) | 催化裂化装置进料喷嘴 | |
US6867324B2 (en) | Method and device for the continuous production of organic mono or polyisocyanates | |
CN107847892A (zh) | 用于烃的脱氢的反应器和反应器内部装置 | |
KR100655339B1 (ko) | 증기 형성 방향족 탄화수소 및 산소 함유 가스의 균질혼합물의 제조 방법 및 장치 | |
CN101060923B (zh) | 在液相存在下使至少两种气体反应的反应器和方法 | |
KR102634847B1 (ko) | 할로겐화 프로판을 제조하는 방법 | |
US11154831B2 (en) | Device for treating particles in a rotating fluidized bed | |
JP2007516074A (ja) | 合成用反応器に酸素を噴射導入する方法および装置 | |
EP0977718B1 (en) | Process for manufacturing allylhalide and equipment to be used therefor | |
CN203683478U (zh) | 催化裂化装置进料喷嘴 | |
JP4084422B2 (ja) | ハロゲン化アリルの製造法及びそのために使用する装置 | |
JPH03157355A (ja) | α・β―不飽和ニトリルの製造装置 | |
EP3990166A1 (en) | Reactor system for the production of high value chemical products | |
CN117695990A (zh) | 反应器及六亚甲基二异氰酸酯的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060110 |
|
A313 | Final decision of rejection without a dissenting response from the applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A313 Effective date: 20060529 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20060704 |